英文:
How to run Binary Files inside GoLang Program?
问题
我想在Go语言程序中执行二进制文件。
这是我的代码：
package main
import (
"fmt"
"os/exec"
)
func main() {
output, _ := exec.Command("/home/user/Golang/bin/hello").Output()
fmt.Println(output)
}
但是我得到的输出是：[]
提前感谢。
英文:
I want to execute Binary Files inside GoLang Program.
Here is my code:
package main
import (
"fmt"
"os/exec"
)
func main() {
output, _ := exec.Command("/home/user/Golang/bin/hello").Output()
fmt.Println(output)
}
But I get the output as: []
Thanks in advance.
答案1
得分: 11
我可以获取输出。
package main
import (
"fmt"
"os/exec"
)
func main() {
output, err := exec.Command("/Users/duguying/gopath/bin/test").Output()
if err!=nil {
fmt.Println(err.Error())
}
fmt.Println(string(output))
}
首先检查你的二进制文件或二进制文件路径是否正确。尝试打印出错误消息。
英文:
I can get the output.
package main
import (
"fmt"
"os/exec"
)
func main() {
output, err := exec.Command("/Users/duguying/gopath/bin/test").Output()
if err!=nil {
fmt.Println(err.Error())
}
fmt.Println(string(output))
}
check you binary file first or binary filepath is correcting. try to print out your error message.
答案2
得分: 1
当我查看exec.Command()的源代码时，它并不返回错误，而是返回一个在exe包中的结构体Cmd：
source
....
func Command(name string, arg ...string) *Cmd {
cmd := &Cmd{
Path: name,
Args: append([]string{name}, arg...),
}
if filepath.Base(name) == name {
if lp, err := LookPath(name); err != nil {
cmd.lookPathErr = err
} else {
cmd.Path = lp
}
}
return cmd
}
....
我成功地使用以下代码运行了二进制文件：
package main
import (
"fmt"
"os/exec"
)
func main() {
command := exec.Command("你的二进制文件路径")
// 设置变量以获取输出
var out bytes.Buffer
// 将输出设置为我们的变量
command.Stdout = &out
err = command.Run()
if err != nil {
log.Println(err)
}
fmt.Println(out.String())
}
这段代码对我来说可以运行一个打印一些随机字符串的二进制文件。
英文:
When I'm looking at the source of the exec.Command() it doesnt return an error but only returns Cmd which is struct in the package exe :
source
....
func Command(name string, arg ...string) *Cmd {
cmd := &Cmd{
Path: name,
Args: append([]string{name}, arg...),
}
if filepath.Base(name) == name {
if lp, err := LookPath(name); err != nil {
cmd.lookPathErr = err
} else {
cmd.Path = lp
}
}
return cmd
}
....
I have succesfully got the binary file running using this code :
package main
import (
"fmt"
"os/exec"
)
func main() {
command:= exec.Command("Your binary file path")
// set var to get the output
var out bytes.Buffer
// set the output to our variable
command.Stdout = &out
err = command.Run()
if err != nil {
log.Println(err)
}
fmt.Println(out.String())
}
This one works for me for running a binary file that will print some random string.
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